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0.8A Step Down / Step Up / Inverting DC-DC Converter
Dual Output Voltage
8
7
Rsc
VIN
6
5
SQ
R
1
Q2
Q1
2
Ipk Oscillator
3
comparator
1.25V
+
Reference
4
-
Regulator
MC34063C
+
+12V
GND
+
-12V
Higher Output Power, Higher Input Voltage
8
1
SQ
R
2
7
VIN
Rsc
Ipk Oscillator
3
6
comparator
1.25V
+
Reference
4
-
Regulator
5
+
+VOUT
Isolated from input
-VOUT
+
Jan. 2007-Rev 1.0
9
HTC